PCC/ CCOG / DRF

Course Content and Outcome Guide for DRF 133

Course Number:
DRF 133
Course Title:
Intermediate Drafting
Credit Hours:
4
Lecture Hours:
20
Lecture/Lab Hours:
20
Lab Hours:
30
Special Fee:
 

Course Description

Reviews and incorporates material presented in DRF 117 and DRF 118. Introduces threads, fasteners, keys and springs, and their applications. Prerequisites: DRF 117, 126. Audit available.

Intended Outcomes for the course

Upon successful completion of this course the student shall have satisfactorily accomplished the goals and objectives listed in the Course Content and Outcome Guides, including;
  1. Demonstrate competency when dimensioning all types of technical mechanical drawings using ANSI/ASME Standards.
  2. Demonstrate a through understanding of tolerancing practices used to develop fits and limits when designing mating parts.
  3. Understand surface finishing concepts and correctly use surface finish symbols when producing mechanical drawings.
  4. Understand and use the American National Standard Limits and Fits tables.

Course Activities and Design


This course will be presented by means of lecture presentations and coordinated laboratory exercises. Lectures are supplemented with selected reading assignments. Individualized instruction will be provided while the student is working on lab projects. This course utilizes freehand sketching techniques learned in previous drafting classes. The majority of assignments will be completed using the AutoCAD 2-D format.

Outcome Assessment Strategies

Evaluation procedures and grading criteria will be discussed during the first class meeting. Individual and classroom discussions, completed assignments, attendance and classroom participation. exams, quizzes, and worksheets may be used to assess outcomes.

Course Content (Themes, Concepts, Issues and Skills)


COURSE CONTENT:

1.0 GEOMETRIC CONSTRUCTION
  1. Identify and draw basic geometric elements.
  2. Understand definitions of terms used in geometric construction.
  3. Use geometric construction techniques to solve problems.
2.0 DIMENSIONING
  1. Dimension drawings using ANSI/ASME Y 1.1-1989 standards.
    1. Accurately measure assigned drawings and produce dimensioned sketches.
    2. Using AutoCAD, create 2-D orthographic mechanical drawings and dimension.
  2. Dimension "Automatic Production Drawings" using ANSI/ASME Y 14.5M-1994 standards.
  3. Apply proper drawing notation to various types of mechanical drawings.
 
3.0 SURFACE FINISHING
  1. Using charts and tables, determine the surface finish for various parts.
  2. Correctly apply surface finish marks to dimensioned drawing.
4.0 FITS AND LIMITS
  1. Given the allowance and tolerance for various mating parts, calculate their dimensional limits.
  2. Given standard fit information use the American National Standard Fits table to determine tolerance of mating parts.